Tire.



L. McKINNON.

TIRE.

APPLICATION FlLED NOV.16, 191s. RENEWED JAN. 16. I918.

Patented Mar. 5, 1918.

LJMKZ'IZWZZ Inventor Witnesses Attorneys UNTTED STATES PATENT LEM'UEL MCKINNON, F OGDEN, UTAH, ASSIGNOR TO UN 1 f ER-SAL AIRLESS AUTO TIRE COMPANY, OF BUTTE, MONTANA, A CORPORATION OF MONTANA.

, TIRE. I

Patented Mar. 5,1918.

Application filed November 16, 1916, Serial No. 131,737. [Renewed January 16, 1918. Serial No. 212,152.

To all whom it may cancer-n.

Be it known that I, LEMUEL McKiNNox, a citizen of the United States, residing at Ogden, in the county of Weber and State of Utah, have-invented a new and useful Tire, of which the following is a specification.

The device forming the subject matter of i to improve generally and to enhance the utility of devices of thattype to which the present invention appertains.

With the above and other objects in view which will appear the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction. hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 is a side elevation showing a rim and a casing, embodying the present invention, a portion of the elements above mentioned being broken away, so that parts appear in section;

Fig. 2 is a section on the line 22 of Fig. l; and

Fig. 3 is a section on the line 33 of Fig. 2, parts being broken away; and

Fig. 4 is a perspective showing the washer.

In the drawings, the numeral 1 indicates a rim having clencher flanges 2 engaging clencher beads 3 on a casing 4. The casing may be assembled with the rim in any desired way, however. A retaining band 5 engages the edges of the casing 4 and holds the beads 3 interlocked with the flanges 2. The band 5 is flexible, and it may be made out of canvas or any other suitable material. A means is provided for drawing the ends of the band 5 together, so that it will exercise its oflice. This tightening means may include a shaft 6 projecting through the rim 1 and accessible from the under side of the rim. The tightening means has not been shown or described in detail, because it may be of any form adapted to the purpose. A suitable tightening meansincluding such an element as the shaft 6 is shown in my Patent No. 1,176,073, granted on the 21st day of March, 1916.

A tread guard in the form of a ring 7 coacts with the outer portion of the casing 4:. The tread guard 7 may be madeofi'elt, leather, canvas or other suitable material,

and has side flanges 8 which project. toward the rim 1. Abutting against the inner surface or the tread guard 7 is a resilient ring 9 which preferably is madeof metal. The guard 7 and its flanges 8 prevent the ring 9 from injuring the casing 1. The ends of the ring 9 are denoted by the reference characters 10 and 11, and are overlapped, as shown in Fig. 1. The contacting inner faces of the ends 10 and 11 of the ring 9. may be beveled as shown at 12, if desired, thereby to reduce as much as possible, the space 21 between the end 10 and the guard 7 at the extremity of the end 11.

The end 10 oft-he ring 9 is provided with a slot lei: elongated circumferentially of the structure. The end '10 has teeth 15 which project into the slot lei as shown in Fig. 3,

the teeth 15 being loca-ted'along the longitudinal edges of the slot. A stud 16 is mounted in the end 11 and projects through the slot 1%. Surrounding the stud 16 is a washer 17 which has opposed notches 18 adapted to ooact with the teeth 15. The washer 17 includes a flange 19 bearing against the under face of the end 10 of the resilient ring 9. A nut 20 is threaded onto the inner end of the stud l0 and bears against the flange 19 of the washer 17. The flange 19 overlaps the end 10 on each side of the slot 1%, as indicated in Fig. 3.

In practical operation, the ends 10 and 11 of the ring 9 are moved apart in opposite directions, until the desired stiffness in the ring 9 is obtained, the stud 16 moving circumferentially of the structure, in the slot let, during this operation. The washer 17 is slipped over the stud 16, after the desired adjustment has been obtained, the notches 18 in the washer receiving certain of the teeth Relative movement between the ends 10 and 11 of the ring 9 will not then take place. The nut 20 is threaded onto the s caslng;

end of the stud 16 and engages the flange 19 of the Washer 17 to hold the Washer in place, as shown in Fig. 1.

As hereinbefore indicated, the casing 1 is held on the rim 1 by tightening up the a the slot, and to permit the relative longitudinal' movement between the ends 10 and 11 of the ring, when an adjustment of the ring is brought about.

Having thus described the invention, what is claimed is In a device of the class described, a rim; a casing carried thereby; a soft tread guard bearing against the inner surface of the a spring ring bearing against the inner surface of the soft tread guard and extended circumferentially of the casing, the ring including inner and outer overlapped ends, the inner end having a longi- Gopies 01 this patent may be obtained for tudinal slot provided at its sides with teeth, 1

, bedded in the slot and to permit free relative longitudinal movement between the ends of the ring to secure an adjustment thereof; a stud fixed to the outer end of the ring and projecting through the slot; a washer on the stud and located in the slot, the Washer having oppositely disposed recesses receiving certain of theteeth on opposite sides of the slot and including a flange resting on the inner face of the inner end of the ring and extended beyondthe sides of the slot; and a tightening element on the inner end of the stud and engaging the flange.

In testimony that I claim the foregoing as my ovvn, I have hereto aflixed my signature in the presence of two Witnesses. LEMUEL MOKINNON.

\Vitnesses A. BOY HEATH, E. M. SULLiVAN.

five cents each, by addressing the Commissioner of Patents Washington, D. C. 

